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CVE-2026-49763: WordPress Integration for Contact Form 7 HubSpot plugin <= 1.3.7 - PHP Object Injection vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-15 · updated 2026-10-25
• Weakness: CWE-502

Description

Unauthenticated PHP Object Injection in Integration for Contact Form 7 HubSpot <= 1.3.7 versions.

Affected products

• CRM Perks Integration for Contact Form 7 HubSpot: through 1.3.7

References

• https://patchstack.com/database/wordpress/plugin/cf7-hubspot/vulnerability/wordpress-integration-for-contact-form-7-hubspot-plugin-1-3-7-php-object-injection-vulnerability?_s_id=cve

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